Xander and Wesley go to Willie's bar and bluff their way in to getting help from the local demons to storm the initiative where Angel and Spike are being held. Xander has Angels arm loaded stakes and Wesley is dressed in leather. Xander leaves a tape with Willie in case anything happens to him (I think thats the same fic). I had though it was rngrdead's five gold rings but I can't seem to find it.
Edit: It's the Long Route to Happiness. Thanks to everyone who racked their brains for me. Tempest